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<h1>Class <code>luci.http.protocol.date</code></h1>

<p></p>







<h2>Functions</h2>
<table class="function_list">

	<tr>
	<td class="name" nowrap><a href="#compare">compare</a>&nbsp;(d1, d2)</td>
	<td class="summary">
 
Compare two dates which can either be unix epoch times or HTTP date strings.</td>
	</tr>

	<tr>
	<td class="name" nowrap><a href="#to_http">to_http</a>&nbsp;(time)</td>
	<td class="summary">
 
Convert the given unix epoch time to valid HTTP date string.</td>
	</tr>

	<tr>
	<td class="name" nowrap><a href="#to_unix">to_unix</a>&nbsp;(data)</td>
	<td class="summary">
 
Parse given HTTP date string and convert it to unix epoch time.</td>
	</tr>

	<tr>
	<td class="name" nowrap><a href="#tz_offset">tz_offset</a>&nbsp;(tz)</td>
	<td class="summary">
 
Return the time offset in seconds between the UTC and given time zone.</td>
	</tr>

</table>






<br/>
<br/>


<h2><a name="functions"></a>Functions</h2>
<dl class="function">



<dt><a name="compare"></a><strong>compare</strong>&nbsp;(d1, d2)</dt>
<dd>

 
Compare two dates which can either be unix epoch times or HTTP date strings. 



<h3>Parameters</h3>
<ul>
	
	<li>
	  d1: The first date or epoch time to compare
	</li>
	
	<li>
	  d2: The first date or epoch time to compare
	</li>
	
</ul>






<h3>Return values:</h3>
<ol>
	
	<li>-1  -  if d1 is lower then d2
	
	<li>0   -  if both dates are equal
	
	<li>1   -  if d1 is higher then d2
	
</ol>



</dd>




<dt><a name="to_http"></a><strong>to_http</strong>&nbsp;(time)</dt>
<dd>

 
Convert the given unix epoch time to valid HTTP date string. 



<h3>Parameters</h3>
<ul>
	
	<li>
	  time: Unix epoch time
	</li>
	
</ul>






<h3>Return value:</h3>
String containing the formatted date



</dd>




<dt><a name="to_unix"></a><strong>to_unix</strong>&nbsp;(data)</dt>
<dd>

 
Parse given HTTP date string and convert it to unix epoch time. 



<h3>Parameters</h3>
<ul>
	
	<li>
	  data: String containing the date
	</li>
	
</ul>






<h3>Return value:</h3>
Unix epoch time



</dd>




<dt><a name="tz_offset"></a><strong>tz_offset</strong>&nbsp;(tz)</dt>
<dd>

 
Return the time offset in seconds between the UTC and given time zone. 



<h3>Parameters</h3>
<ul>
	
	<li>
	  tz: Symbolic or numeric timezone specifier
	</li>
	
</ul>






<h3>Return value:</h3>
Time offset to UTC in seconds



</dd>


</dl>





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